Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
    Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
    Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
    Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
    Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
    Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board
Lennox 77C3801 OEM Commercial HVAC Electronic Control Board

Lennox 77C3801 OEM Commercial HVAC Electronic Control Board

Part #: 77C3801 Manufactured by: Lennox
Regular price
$1,199.00
Sale price
$1,199.00
Regular price
1 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The 77C3801 is a critical electronic processing interface that ensures safe and highly accurate climate regulation within ...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Contact Us!

Talk to a real expert.

Mon–Sat, 7:00 AM – 8:00 PM (EST)
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 77C3801
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro BBB Business Review
IQElectro is Not an authorized distributor for Lennox
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 77C3801

Description / Specifications

Description

The Lennox 77C3801 is a high-performance OEM electronic control board engineered to manage and synchronize critical heating and cooling functions within commercial HVAC systems. It precisely processes incoming thermostat signals to dictate automated blower, compressor, and ignition cycles. Built for continuous duty, this control module ensures reliable climate regulation and maximizes overall energy efficiency in demanding environments.



Technical Specifications

Condition New/Never Used Surplus
Brand Lennox
Category HVAC Controls
Part Number 77C3801
Subcategory Printed Circuit Boards
Component Type OEM Control Board
Application Commercial Heating and Cooling
Mounting Internal Chassis Plug-In
Weight 1.2 lbs

 

 

Information About 77C3801

The 77C3801 is a robust solid-state processing board manufactured to exact Lennox factory specifications for seamless integration into existing air handling units and rooftop packages. It features premium surface-mount microelectronics protected against airborne moisture and conductive factory dust to prevent logic faults. Designed as a direct drop-in replacement, it interfaces flawlessly with internal sensors and safety limit switches to prevent hazardous thermal overloads. By maintaining stable electrical communication, it significantly reduces system downtime and extends the operational lifespan of the main HVAC hardware.

Key Features:

  • OEM Precision: Manufactured to exact factory tolerances to guarantee a perfect electrical and physical fit within compatible Lennox systems.

  • Automated Synchronization: Processes complex sensor inputs to flawlessly coordinate blower motors, ignition sequences, and cooling stages.

  • Solid-State Reliability: Built with premium electronic components to sustain continuous, heavy-duty commercial climate control cycles.

  • Fault Prevention: Continuously monitors internal system limits to quickly halt operation during hazardous voltage spikes or thermal overloads.

  • Streamlined Maintenance: Features standardized terminal connections to allow HVAC technicians to perform rapid field replacements.

  • System Longevity: Eliminates power fluctuations and logic errors to maintain continuous facility comfort and safety.
    The 77C3801 delivers the reliability and precision required for strict commercial HVAC automation.

                                                                                                                                                                                Get fast quote and compatibility check
                                                                                                                                                                                Compatibility check available   ·   Alternative parts suggested
                                                                                                                                                                                Get a response to your request within 5 minutes
                                                                                                                                                                                Talk to a real industrial automation specialist.
                                                                                                                                                                                We verify compatibility, suggest alternatives, and provide fast quotes.
                                                                                                                                                                                Something went wrong, please try again
                                                                                                                                                                                Form image
                                                                                                                                                                                Arty A.
                                                                                                                                                                                Senior Sales Manager
                                                                                                                                                                                Daniel S.
                                                                                                                                                                                Parts Specialist
                                                                                                                                                                                Request successfully sent!
                                                                                                                                                                                Estimated response time: 1 to 5 minutes.
                                                                                                                                                                                Description / Specifications

                                                                                                                                                                                Description

                                                                                                                                                                                The Lennox 77C3801 is a high-performance OEM electronic control board engineered to manage and synchronize critical heating and cooling functions within commercial HVAC systems. It precisely processes incoming thermostat signals to dictate automated blower, compressor, and ignition cycles. Built for continuous duty, this control module ensures reliable climate regulation and maximizes overall energy efficiency in demanding environments.



                                                                                                                                                                                Technical Specifications

                                                                                                                                                                                Condition New/Never Used Surplus
                                                                                                                                                                                Brand Lennox
                                                                                                                                                                                Category HVAC Controls
                                                                                                                                                                                Part Number 77C3801
                                                                                                                                                                                Subcategory Printed Circuit Boards
                                                                                                                                                                                Component Type OEM Control Board
                                                                                                                                                                                Application Commercial Heating and Cooling
                                                                                                                                                                                Mounting Internal Chassis Plug-In
                                                                                                                                                                                Weight 1.2 lbs

                                                                                                                                                                                 

                                                                                                                                                                                 

                                                                                                                                                                                Information About 77C3801

                                                                                                                                                                                The 77C3801 is a robust solid-state processing board manufactured to exact Lennox factory specifications for seamless integration into existing air handling units and rooftop packages. It features premium surface-mount microelectronics protected against airborne moisture and conductive factory dust to prevent logic faults. Designed as a direct drop-in replacement, it interfaces flawlessly with internal sensors and safety limit switches to prevent hazardous thermal overloads. By maintaining stable electrical communication, it significantly reduces system downtime and extends the operational lifespan of the main HVAC hardware.

                                                                                                                                                                                Key Features:

                                                                                                                                                                                • OEM Precision: Manufactured to exact factory tolerances to guarantee a perfect electrical and physical fit within compatible Lennox systems.

                                                                                                                                                                                • Automated Synchronization: Processes complex sensor inputs to flawlessly coordinate blower motors, ignition sequences, and cooling stages.

                                                                                                                                                                                • Solid-State Reliability: Built with premium electronic components to sustain continuous, heavy-duty commercial climate control cycles.

                                                                                                                                                                                • Fault Prevention: Continuously monitors internal system limits to quickly halt operation during hazardous voltage spikes or thermal overloads.

                                                                                                                                                                                • Streamlined Maintenance: Features standardized terminal connections to allow HVAC technicians to perform rapid field replacements.

                                                                                                                                                                                • System Longevity: Eliminates power fluctuations and logic errors to maintain continuous facility comfort and safety.
                                                                                                                                                                                  The 77C3801 delivers the reliability and precision required for strict commercial HVAC automation.

                                                                                                                                                                                                                                                                                                                                                              Check Out These Related Products